7-Day Programmable Digital Commercial Thermostat, Volts:24 VAC,3 Configurable Outputs, Control Up To 3 Heat and 2 Cool Stages, Adjustable 2nd and 3rd Stage Timers and Deadbands, Backlit Display, Aux Heat Indicator, Set Point Limiting, Outdoor Sensor Ready with High/Low Readouts for the Day, Econimizer Control, Programmable Output, Accepts Optional E ZProgrammer, IR Remote Control or Comfort Call Phone Control Accessories, Dims:4"H X 5-3/4"W X 1-1/16"D, Weight:10oz, In Mfg Box, Made In China.